Pure nicotine refers to a highly concentrated form of the chemical compound nicotine, typically extracted from tobacco plants. It is commonly used in various industries, including pharmaceuticals, agriculture, and vaping. In pharmaceuticals, pure nicotine may be used as an active ingredient in nicotine replacement therapies (NRTs) designed to help individuals quit smoking. In agriculture, it can be utilized as an insecticide to control pests. Additionally, pure nicotine is commonly used in the vaping industry to create e-liquids for electronic cigarettes. It's important to handle pure nicotine with caution due to its toxicity, and proper safety measures should be followed during handling and usage.